Samuel Joseph Mozes known as Seph has emerged as a significant figure in contemporary social discussions, not just as the son of a Hollywood icon, but as a dedicated activist and scholar. Born in November 1996, Seph is the eldest child of the acclaimed actress and activist Cynthia Nixon and her former partner, Danny Mozes. While many children of celebrities shy away from the spotlight or follow strictly in their parents’ footsteps, Seph has carved out an identity defined by personal authenticity and social justice. His journey from a quiet childhood in New York to becoming a vocal advocate for various causes has captured the public’s interest and respect.
Biographical Profile: Samuel Joseph Mozes
| Full Name | Samuel Joseph Mozes |
| Commonly Known As | Seph |
| Date of Birth | November 1996 |
| Birthplace | New York City, New York |
| Parents | Cynthia Nixon (Actress/Activist) and Danny Mozes (Educator) |
| Siblings | Charles Ezekiel Mozes and Max Ellington Nixon-Marinoni |
| Education | University of Chicago (Graduated June 2018) |
| Identity | Transgender Man (Publicly shared in June 2018) |
| Primary Focus | Social Justice, LGBTQ+ Advocacy, and Political Activism |
| Notable Affiliations | Jewish Voices for Peace (JVP) |
| Key Activism Moments | Participation in 2024–2025 Gaza Ceasefire hunger strikes and protests |
| Religious Identity | Observant Jewish |
| Current Residence | Primarily based in the United States (Chicago/New York) |
Early Life and Family Background
The story of Samuel Joseph Mozes known as Seph begins in the heart of New York City. Born to Cynthia Nixon, famous for her role as Miranda Hobbes in Sex and the City, and Danny Mozes, an educator, Seph grew up in an environment that valued both intellectual curiosity and creative expression. His parents were together from 1988 to 2003, and during that time, they fostered a supportive home for Seph and his younger brother, Charles Ezekiel Mozes. Growing up as the child of a public figure, Seph was exposed to the complexities of fame early on, yet his parents worked hard to maintain a sense of normalcy.
Growing Up in the Public Eye
For Samuel Joseph Mozes known as Seph, childhood was a blend of private family moments and occasional public appearances. Unlike many “nepo babies,” Seph was rarely the focus of tabloid fodder during his younger years. His mother, Cynthia Nixon, was protective of her children’s privacy while they were growing up. This allowed Seph to develop his own interests and personality away from the constant glare of the cameras. The family’s connection to New York’s cultural and political life, however, undoubtedly influenced his later commitment to community organization and activism.
Education at the University of Chicago
A pivotal chapter in the biography of Samuel Joseph Mozes known as Seph is his time at the University of Chicago. Known for its rigorous academic environment and focus on critical thinking, the university provided Seph with the tools to explore his interests in depth. He graduated in June 2018, a milestone that was celebrated publicly by his mother. His time in Chicago was not just about earning a degree; it was a period of significant personal growth and the beginning of his journey into serious social activism and political engagement.
Coming Out and Transgender Identity
In June 2018, coincidentally with his college graduation, Cynthia Nixon shared a heartfelt post on Instagram revealing that her eldest son, Samuel Joseph Mozes known as Seph, is transgender. This announcement was timed to coincide with the 14th Annual Trans Day of Action. Nixon expressed immense pride in Seph’s journey and his graduation. This moment was significant as it provided visibility for transgender individuals and highlighted the importance of familial support. Seph, who was born Samantha, chose the name Samuel and the nickname Seph, marking a new chapter of authenticity in his life.
The Influence of Cynthia Nixon’s Activism
It is impossible to discuss Samuel Joseph Mozes known as Seph without acknowledging the influence of his mother’s transition from acting to full-time activism and politics. Cynthia Nixon ran for Governor of New York in 2018, and her platform was heavily focused on LGBTQ+ rights, education, and social equity. Seeing his mother use her platform for change likely inspired Seph to find his own voice. The relationship between mother and son appears to be one of mutual respect and shared values, with Seph often encouraging his mother to use her voice for even broader global issues.
Advocacy for Social Justice
Following his graduation, Samuel Joseph Mozes known as Seph became increasingly involved in grassroots activism. His work often focuses on marginalized communities and systemic inequality. Rather than relying on his mother’s celebrity status, Seph has been seen working on the ground with various organizations. His approach to activism is characterized by a deep understanding of intersectionality—recognizing how different forms of discrimination overlap. This commitment to social justice has made Samuel Joseph Mozes known as Seph a respected figure among young activists in the New York and Chicago areas.
Involvement with Jewish Voices for Peace
In recent years, Samuel Joseph Mozes known as Seph has made headlines for his involvement with Jewish Voices for Peace (JVP). Seph, who identifies as an “observant” Jew, has been vocal about his political beliefs regarding the Middle East. In 2024 and 2025, Seph participated in high-profile protests and even a hunger strike in Chicago to advocate for a ceasefire and humanitarian aid for Gaza. His mother, Cynthia Nixon, has publicly supported his right to protest, noting that Seph has implored her to use her platform to speak out against human suffering.
Personal Beliefs and Philosophy
The personal philosophy of Samuel Joseph Mozes known as Seph is rooted in the Jewish principle of Tikkun Olam, or “repairing the world.” His commitment to activism is not just a political choice but a moral one. Seph’s peers often describe him as someone who is deeply empathetic and willing to sacrifice personal comfort for the sake of a larger cause. Whether it is through participating in a hunger strike or organizing community events, Seph’s actions reflect a belief in the power of collective action and the necessity of standing up for the oppressed.
Siblings and Family Dynamics
The family structure surrounding Samuel Joseph Mozes known as Seph is a modern and inclusive one. He has a younger brother, Charles Ezekiel Mozes, born in 2002, and a half-brother, Max Ellington Nixon-Marinoni, born in 2011 to Cynthia’s wife, Christine Marinoni. Despite the different branches of the family tree, the siblings appear to be close. Seph’s role as the eldest sibling has often seen him taking a lead in family discussions about identity and social responsibility. The support system within the Nixon-Mozes-Marinoni household is frequently cited as a model of contemporary family love.
Career Path and Future Aspirations
While Samuel Joseph Mozes known as Seph is primarily known for his activism, he has also pursued interests in research and academia. His education at the University of Chicago laid a strong foundation for a career that could span across policy-making, sociology, or non-profit leadership. While he keeps many details of his professional life private, it is clear that his future will involve a continued dedication to the causes he champions. The trajectory of Seph’s life suggests he is more interested in making a tangible impact than seeking traditional fame.
Public Perception and Media Presence
The public perception of Samuel Joseph Mozes known as Seph is largely positive, especially within the LGBTQ+ and activist communities. He is seen as a figure of courage—someone who navigated a public transition and used his “celebrity-adjacent” status to shine a light on important issues. While he has faced some criticism from those who disagree with his political stances, particularly regarding his work with JVP, Seph has remained steadfast in his convictions. His ability to handle public scrutiny with grace has earned him a reputation as a principled young man.
Conclusion: The Legacy of Seph Mozes
In conclusion, Samuel Joseph Mozes known as Seph is much more than the son of a famous actress. He is a scholar, a passionate activist, and a person who lives his life with a high degree of integrity. By embracing his identity and fighting for the rights of others, he has become an inspiration to many. His story is a powerful reminder that our backgrounds do not define us; rather, it is our actions and our commitment to our values that leave a lasting mark on the world. As Seph continues his work, he remains a key figure to watch in the realm of social justice.
Frequently Asked Questions (FAQs)
1. Who is Samuel Joseph Mozes known as Seph?
Samuel Joseph Mozes known as Seph is the eldest child of actress Cynthia Nixon and Danny Mozes. He is known for his activism and for being a prominent transgender man in the public eye.
2. Where did Seph Mozes go to college?
Seph graduated from the University of Chicago in June 2018. His graduation was a major milestone celebrated by his family and the LGBTQ+ community.
3. What is Seph Mozes’ connection to Jewish Voices for Peace?
Seph is an active member of Jewish Voices for Peace (JVP) and has participated in protests and hunger strikes to advocate for peace and humanitarian aid in Gaza.
4. When did Seph Mozes come out as transgender?
His mother, Cynthia Nixon, publicly shared that Seph is transgender in June 2018 during the Trans Day of Action, expressing her pride in his journey.
5. How many siblings does Samuel Joseph Mozes have?
Seph has two brothers: Charles Ezekiel Mozes and Max Ellington Nixon-Marinoni.
6. Is Seph Mozes involved in acting?
Unlike his mother, Samuel Joseph Mozes known as Seph has primarily focused on academic pursuits and social activism rather than a career in the performing arts.
7. What is the meaning of the nickname “Seph”?
“Seph” is a shortened, affectionate version of his first name, Samuel, which he has used since his transition.
